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Three colors have been proposed for a product: blue, green, yellow. The null hypothesis for a goodness-of-fit test would be.
A) green is preferred over the other colors
B) there is no preference between colors
C) any one color is preferred over the other colors
D) impossible to determine
I believe that 'B' is the null hypothesis as the assumption would be equal preference among consumers for each of the colors. Is 'B' the best response? If not, can you explain in a few sentences or less?
A random sample of n = 4 scores is selected from a population with µ = 80 and σ = 20. On average, how much difference would you expect between the sample mean and the population mean?
Four students each received a raw score of 22 on a different test. Compute the z-score for the raw score value of 22 for each student, given information about the distributions of X values for each test.
The time between arrivals of cars at the Petroco Service Station is defined by thw following probability distribution.
Develop a linear regression model for these data and forecast carpet sales if 30 construction permits for new homes are filed.
Calculate the mean and standard deviation for this set of data. Convert your answer back to dollars and cents and give the correlation value between number of beers consumed and BAC?
Determine the overall probability (rating), given all the ratings and weightings that, when A, B, C, D and E are combined.
Find the critical t alpha/2 assuming the population is normally distributed, the confidence level is 95%, n=101 and sigma is unknown.
Pollsters try to determine whether or not a person is a "likely voter" before they count their opinion in a poll. If we assume 40% of the registered voters will actually vote, in a random sample of 100 registered voters we can be 95% confident tha..
Based on a sample of 49 students, Healthy Lifestyles Incorporated (HLI) would like to apply the central limit theorem to ma ke various estimates. a) Compute the standard error of the sample mean. (Round your answer to 2 decimal places.)
The probability I'll jog today is 0.90 and the probability you'll jog tonight is 0.30. Find the probability:
Determine the probability that at most 4 fish will be killed?
State the null and alternative hypotheses you would use to test whether the year-end bonuses paid by Jones & Ryan were different from the population mean.
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